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No. 623,184. Patented Apr. l8, I899.

s. scHAnLE. CYCLE LOCK.

(Application filed Jan. 21,1898. (No Model.)

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SEBASTIAN sorn'inLE, OF onoNENnAoH, GERMANY.

CYCLE-LOCK.

SPECIFICATION forming part of Letters'PatentNo. 623,184, dated April 18,1899.

Application filed January 21,1898- Serial No. 667,445. (No model.)

To rtZZ whom it may concern.-

Be it known that I, SEBASTIAN SCHADLE, of

Gronenbach, near Allgitu, in the Empire of Germany, have inventedImprovements in Oycle'Locks, of which the following is a specification,reference being bad therein to the accompanying drawings.

This invention relates to an improved cycle-lock for preventing thecycle from being used by unauthorized persons, the construction of saidlock being such that a bolt projecting from the lock stops one of thetwo pedal-cranks, and thus prevents the whole pedal mechanism fromexecuting the'slightest movement. p

The invention is represented in the accompanying drawings, in whichFigures 1 and 2 are different horizontal sections. Fig. 3 is a verticalsection through the lock; Fig. at, an upper view of the look, whileFigs. 5 and 6 illustrate the method in whichthe lock is arranged on thevelocipede.

In the interior of the look a bolt a is arranged which so projects fromthe lock that when being slid forward it will grip one of the cranks I),and thus prevent either of the cranks from further rotation. This boltis slid in and out by hand, and the point in question solely is toretain the bolt in either of its positions and to prevent the bolt whenin the closed position from being moved back by unauthorized persons.For this purpose in the interior of the-lock a tumbler d, capable ofturning on a pivot c, is arranged, against the nose 8 of which bears thebolt a when in either of its extreme positions. Through the action of aspring g the tumbler d is constantly pressed against the bolt, so thatthe latter can only be brought into the open or closed position if thetumbler d has been properly moved backthat is to say, brought into theposition shown in dotted lines in Fig. 1.

The drag-bar 7L may be actuated so as to move aside the pin 1', which isfixed to the tumbler (Z, and thus simultaneously shift the said tumblerd. This drag-bar h is rotatable upon a transverse fence-bar 7a, whichcan-be moved between the guides Z, and which is moved by means of a knobm, projecting from the lock-casing. The limits of movement of the knobis determined by the angular slot 77., arranged in the upper casing ofthelock, from which the said knob projects, the operation being suchthat the knob is first moved out of its highest position into thatrepresented in Fig. 4 and is subsequently moved toward the left. By thelatter portion of the movement the drag-bar his turned toward the left,and simultaneously therewith also the tumbler d, retaining the bolt, ismoved toward the left.

It is evident that the knob must first be turned out of its initialposition into the'knee of the slot before it can execute the left-handmovement by which the tumbler d is moved.

The principal idea on which the invention is based is that the movementof the knob out of its initial position down to the knee of the slot canonly be executed when the four hands 1* occupy a certain relativeposition. Now as, on the onehand, very many combinations are possiblewith these four hands .and as, on the other hand, only the ownerof thecycle is aware of the position required for placing the look into itsopening positionit is evident that for any unauthorized person it isnext to impossible to open the lock. Each of the hands is connected to adisk or turnbler 0, each of which latter is provided with a gating .9,Figs. 2 and 3. The connection between the hands and the tumblers is ofcourse such that onehand is connected with one tumbler by means of anaxle,while the other hand, turning about the same axle, is connectedwith the second tumbler by means of a small tube or sleeve traversed bythe before-mentioned axle. The fencebar lahereinbefore referred to, isprovided with two fences t, which are enabled to engage with the gatingss of the tumblers. The said fence-bar 76 thus can only be moved downwardto such an extent that the fences come into contact with the peripheriesof the tumblers. Consequently the knob m, connected to the fence-bar bymeans of the drag-bar h, is prevented from being slid down to the kneeof the slot and accordingly the pivotal tumbler 61 cannot be moved outof its locking position. After each displacement of the bolt 00 thetumbler dis re turned to its locking position, Fig. l, by acorresponding rotation of the drag-bar h. Thus the movement of the bolta required for looking as well as for releasing the wheel can only beeffected if the hands are so placed that the gatings of the tumblers lieopposite the two fences 2 This given position of the hands may of coursebe altered by displacing them upon their axes or by imparting to themanother relative position on mounting them upon their axes.

The lock admits of being very rapidly opened and closed by passing thefour hands into the proper predetermined position, only known to theowner of the cycle. The main advantage of the lock,however, consists inthe fact that no key is required for opening and closingthe look, sothat the cyclist is not exposed to the inconvenience'of losing his key.

What I claim, and desire to secure by Letters Patent of the UnitedStates, is

1. A cycle-lock comprising a locking-bolt mounted in a suitable casing,a pivoted tumbler mounted in the said casing and adapted to engage theinner end of the said bolt for holding the same in place, a drag-bar formoving the said pivoted tumblerout of engagement with the bolt, andmeans for preventing the movement of the drag-bar, substantially asdescribed.

2. In a cycle-lock, the combination with a bolt mounted in a suitablecasing, of a pivoted tumbler mounted therein and adapted to engage theinner end of the said bolt for holding it in its extreme positions, adrag-bar also pivotally mounted in the said casing and adapted to have aradial movement in order to engage the said tumbler for moving it out ofengagement with the bolt, and means for preventing the movement of thedrag-bar when the bolt is in its locked position, substantially asdescribed.

3. In a cycle-lock, the combination with a suitable bolt, of a pivotedtumbler for engaging and controlling the said bolt, a fence-bar alsomounted in the said casing, a drag-bar pivoted to said fence-bar andadapted to engage the pivoted tumbler for releasing the bolt, and meansfor controlling the movement of the fence-bar, substantially asdescribed.

4t. In a cycle-lock, the combination with a bolt, of a tumbler forcontrolling the same, a fence-bar carrying fences, a drag-bar pivoted tosaid fence-bar and adapted to swing upon said pivotal point to operatethe said tumbler, and permutation-til mblers for controlling themovement of the fence-bar, substantially as described.

5. In a cycle-lock, the combination with a suitable casing, ofa boltadapted to move therein, the outer end of the said bolt being providedwith engaging arms for engaging the crank of the cycle when the bolt isin its outward position, a pivoted tumbler in the said casing adapted toengage the rear end of the said bolt for holding it in its extremepositions, a drag-bar pivotally mounted in the said casing and having astud which projects exteriorly thereof through a slot formed in the saidcasin g, the said slot being approximately L-shaped, whereby the studupon the said bar must be brought to the lower portion of the slotbefore it can move laterally for engaging the pivoted tumbler, and meansconnected to the drag-bar for engaging notched tumblers, theconstruction beingsuch that when the said means engages the saidnotches, thestud and arm may be moved so as to swing laterally fordisengaging the bolt of the lock, substantially as described.

6. In a cycle-lock, the combination with a suitable bolt, of a pivotedtumbler for controlling the same, a fence-bar provided with two or morefences, a drag bar pivotally mounted on the said fence-bar, andpermutation-tumblers provided with gatings and adapted to engage thefences, and means for preventing the movement of the drag-bar upon itspivotal point when the fences are out of engagement with the saidgatings, substantially as described. I

7. In a cycle-lock, the combination with asuitable bolt, of a tumblerfor controlling the same, a fence-bar carryingfences, a drag-bar pivotedto the said fence-bar and adapted to operate the said tumbler,permutation-tumblers having gatings, exterior pointers secured to saidpermutation-tumblers for indicating their position, and a projectionformed upon the said drag-bar adapted to engage a slot formed in thecasing, the construction being such that the drag-bar cannot be moved soas to operate the bolt-tumbler except when the gatings of thepermutation-tumblers are in a position to receive the fences of thefencebar, substantially as described.

In witness whereof I have hereunto set my hand in presence of twowitnesses.

SEBASTIAN SCI-IADLE.

\Vitnesses:

HANS MADLENER, EMIL HENZEL.

